Bryan Orr explains Refrigeration Rack Overview w/ Sped up Oil Change on a grocery store.

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40 thoughts on “Refrigeration Rack Overview w/ Sped up Oil Change

  1. Jayson Goff says:

    Those hot oil loops inside the suction header had a tendency to crack/break, so Hill and Kysor Warren discontinued them. We in the service industry unhooked many during remodels and retrofits. Whenever those would leak directly into the suction header, many issues would ultimately present themselves. The service tech then would have no choice but to abandon the loop.

  2. Zeljko S says:

    I've noticed that you didn't change the seal on filter shell cap. Few new seals are usually delivered inside of the can together with new filter core and it is very important to change them each time you open it. I like to put few drops of oil too which, I believe, helps new seal to "sit better" between metal surfaces.
    Why it is not allowed to use Brake Cleaners? I used R141 before it was banned and now I use only clean rag and dry nitrogen.

  3. Leon Bogon says:

    great video for new techs to see-things haven't changed much since i was servicing systems—except refrigerant shuffling-looks like co2 and hfc''s or future–keep vids coming-thanks

  4. William Anstead says:

    Looking forward to watching all that I can here. Already onto the podcasts. I do take caution as to the description of the 'approved' electrical contact cleaner. Extremely flammable as described on the SDS. Tetrachloroethylene, aka chlorinated brake cleaner, may be a feed stock in the production of some refrigerants. The non-chlorinated variety has chemistry that may be hygroscopic, therefore contain water.

  5. Ralph Giampietro says:

    Why are the liquid lines on the condenser doubled trapped as well as the condensers shown in the vid were at the same level as the motor room which can lead to gas binding you really don't have a free draining liquid leg especially with the liquid line trapped?

  6. Neilvester Victor says:

    i want to learn supermarket refrigeration its interesting the methods you use are u base in florida i work on chill water systems looking to come to the states to study looks like it might be florida

  7. Dave Whelan says:

    Can't believe that rack has CDS valves. Must have been a retrofit. My guess is if the oil is acidic and breaking down the system is probably running high super heat or high head. A system running properly doesn't need an oil change unless your changing the refrigerant.

  8. Jimmy P says:

    Been doing hvacr for 20 years and starting to move into supermarket… great videos brotha I really appreciate them and they def help!! 🤘🤘🇺🇸🇺🇸

  9. John Tyszka says:

    An HH drier is used for wax removal after a burnout. If you are trying to remove acid from a system, the standard 4864 drier is the correct drier to use. This has been a misconception in the industry for years. Check Sporlan or Alco’s specs on their cores. They will tell you the same thing.

  10. John D says:

    Were I work they send hvac guys out to work on racks and expect them to know how all this works and do it in an hour. I see you have several guys. My company would send one guy out and expect it be done in half the time it should take. And they wonder why equipment fails.

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